Engineering, 14.04.2020 22:14 help1572

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kPa and 17°C. This system uses a regenerator as well as reheating and intercooling. The pressure ratio across each compressor is 4; 300 kJ/kg of heat are added to the air in each combustion chamber (hint, this doesn’t mean the exit temperature is the same for both combustors); and the regenerator operates perfectly while increasing the temperature of the cold air by 20°C (hint, this means T5=T4+20°C). Determine this system’s thermal efficiency.

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 15:10, margaret1758

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Answers: 1

continue

Engineering, 04.07.2019 18:10, lowkeyqueenk

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk

Answers: 1

continue

Engineering, 04.07.2019 18:10, ijohnh14

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Answers: 2

continue

Engineering, 04.07.2019 18:10, jojoangelique13

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

Answers: 2

continue

You know the right answer?

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kPa and 1...